Browsing by Title Facultad de Ciencias Físicas y Matemáticas
Now showing items 11896-11915 of 20582
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(IOP, 2020)Using the Atacama Large Millimeter/submillimeter Array, we observed the young Herbig star HD 100546, host to a prominent disk with a deep, wide gap in the dust. The high-resolution 1.3 mm continuum observation reveals fine ...
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(Research Publishing, Singapore, 2020)
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(E D P SCIENCES, 7, AVE DU HOGGAR, PARC D ACTIVITES COURTABOEUF, 2004)We present the kinematical data obtained for a sample of active (Seyfert) and non active isolated spiral galaxies, based on long slit spectra along several position angles in the Hα line region and, in some cases, in the ...
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(Springer, 2017)A fluid queuing network constitutes one of the simplest mod-els in which to study flow dynamics over a network. In this model wehave a single source-sink pair and each link has a per-time-unit capac-ity and a transit time. ...
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(2016)We study the long-time behavior of variants of the telegraph process with position-dependent jump rates, which result in a monotone gradient-like drift towards the origin. We compute their invariant laws and obtain, via ...
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(2010)The Doppler wobble induced by the extra-solar planet HD 134987b was first detected by data from the Keck Telescope nearly a decade ago, and was subsequently confirmed by data from the Anglo-Australian Telescope (AAT). ...
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(Mosby Inc., 2019)Introduction: Laparoscopic Nissen fundoplication is the preferred operative treatment for patients with gastroesophageal reflux disease. The most recent published results only refer to clinical evaluations and few discuss ...
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(Universidad de Chile, 2015)América Central, América del Sur y el Caribe destacan en el escenario energético mundial por la contribución espectacular de las fuentes renovables en la matriz energética regional. Mantener tal participación en el futuro ...
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(American Society of Civil Engineers, 2014)Repetitive loading can induce volumetric and shear strain accumulation in soils and affect the long-term performance of engineered and natural geosystems.Ahybrid numerical scheme based on theFEMis implemented to analyze ...
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(Copernicus Gesellschaft MBH, 2021)Several magnetic measurements and theoretical developments from different research groups have shown certain relationships with worldwide geological processes. Secular variation in geomagnetic cutoff rigidity, ...
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(Royal Astronomical Society, 2015)We present long-term monitoring of MCG-6-30-15 in X-rays, optical and near-IR wavelengths, collected over 5 yr of monitoring. We determine the power spectrum density of all the observed bands and show that after taking ...
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(Elsevier Ltd, 2019)Current knowledge about the performance of floating seaweeds as dispersal vectors comes mostly from mid latitudes (30°–40°), but phylogeographic studies suggest that long-distance dispersal (LDD) is more common at high ...
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(Elsevier, 2021)High Andean wetlands of the elevated plateaus of the Andes Mountains of Chile, Argentina, Peru and Bolivia are true oases that sustain life in this arid region. Despite their ecological value, they have been rarely studied ...
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(Oxford Univ Press, England, 2021)Long-term stellar activity variations can affect the detectability of long-period and Earth-analogue extrasolar planets. We have, for 54 stars, analysed the long-term trend of five activity indicators: logR HK, the ...
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(Cambridge University Press, 2015)To Philippe Flajolet, a mathematical discontinuity, a tamer of singularities. A two-row array of integers an = a1 a2 ... an b1 b2 ... bn is said to be in lexicographic order if its columns are in lexicographic order (where ...
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(Elsevier, 2014)Longest-edge refinement algorithms were designed to iteratively refine the mesh for finite-element applications by maintaining mesh quality (assuring a bound on the smallest angle). In this paper we improve geometrical ...
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(ACADEMIC PRESS INC ELSEVIER SCIENCE, 2006-11-15)A two-species Lotka-Volterra competition-diffusion model with spatially inhomogeneous reaction tenns is investigated. The two species are assumed to be identical except for their interspecific competition coefficients. ...
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(1999-11-08)We describe the two generic instabilities which arise in quasireversible systems and show that their normal forms are the well-known real Lorenz equations and the Maxwell-Bloch equations. We present for the first time ...
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(Universidad de Chile, 2015)La evolución geológica del margen occidental de América del Sur es el resultado de procesos tectónicos como subducción de corteza oceánica, magmatismo, acreción, rifting y colisiones continentales. Para comprender esta ...
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(Universidad de Chile, 2015)El estudio de caso analiza la incorporación de valor público en los procesos de diseño de políticas orientadas a la protección social de la infancia chilena, que tienen como particularidad el que buscan brindar respuestas ...
